I haven't been reading Iron Man since Joe Q. turned him into a villai, but I loves me some Mandarin. But didn't he have 10 rings instead of 5?
Really, Mandarin should be an A-List villain, except that for some godforsaken reason, Stan Lee decided that it would be cool if he was more threatening as a karate master than as an evil genius with 10 alien rings that gave him incredible power.